Health event characteristics
| Grid cell density | All N=636; N (%)* | Low n=122 (19); n (%)* | Medium n=136 (21); n (%)* | High n=378 (59); n (%)* |
| Patient age | ||||
| 0–4 years | 411 (65) | 78 (64) | 96 (71) | 237 (63) |
| 5–10 years | 26 (4) | 3 (2) | 8 (6) | 15 (4) |
| 11+ years | 199 (31) | 41 (34) | 32 (24) | 126 (33) |
| Symptom† | ||||
| Congestion (cold) | 385 (61) | 82 (67) | 92 (68) | 211 (56) |
| Fever | 330 (52) | 60 (49) | 73 (54) | 197 (52) |
| Cough | 313 (49) | 66 (54) | 79 (58) | 168 (44) |
| Diarrhoea | 133 (21) | 23 (19) | 36 (26) | 74 (20) |
| Headache | 66 (10) | 14 (11) | 10 (7) | 42 (11) |
| Abdominal pain | 39 (6) | 7 (6) | 9 (7) | 23 (6) |
| Vomiting | 31 (5) | 4 (3) | 8 (6) | 19 (5) |
| Chest pain | 22 (3) | 6 (5) | 7 (5) | 9 (2) |
| Skin problem | 16 (3) | 3 (2) | 4 (3) | 9 (2) |
| Infection | 10 (2) | 2 (2) | 0 (0) | 8 (2) |
| Other symptoms‡ | 80 (13) | 12 (10) | 14 (10) | 54 (14) |
| Cause (perceived) | ||||
| Temperature exposure§ | 258 (41) | 52 (43) | 59 (43) | 147 (39) |
| Medical/epidemiological/environmental | 130 (20) | 16 (13) | 26 (19) | 88 (23) |
| Cultural (eg, teething) | 56 (9) | 10 (8) | 14 (10) | 32 (8) |
| Stress/fatigue | 45 (7) | 9 (7) | 11 (8) | 25 (7) |
| Unknown | 136 (21) | 31 (25) | 26 (19) | 79 (21) |
| Severity (perceived) | ||||
| Not severe | 382 (60) | 66 (55) | 85 (63) | 231 (61) |
| Severe | 252 (40) | 55 (45) | 51 (38) | 146 (39) |
| Sought care | ||||
| Yes | 220 (35) | 39 (32) | 33 (24) | 148 (39) |
| No | 416 (65) | 83 (68) | 103 (76) | 230 (61) |
*Percentages calculated vertically.
†Percentage of health events that include listed symptoms; median symptoms/health event=2.
‡‘Other’ included anaemia, back, diabetes, ear, hypertension, joint, mouth, pregnancy, seizure, throat, trauma, vaginal and vision problems.
§A perceived imbalance of ‘hot’ and ‘cold’ within the body caused by environmental exposures (humoral pathology).